28315495960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{345817}}^1$

素因数の和:345940

約数の個数: 64

約数和(自身を含む): 67227019200

約数和(自身を除く): 38911523240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 89, 92, 115, 178, 184, 230, 356, 445, 460, 712, 890, 920, 1780, 2047, 3560, 4094, 8188, 10235, 16376, 20470, 40940, 81880, 345817, 691634, 1383268, 1729085, 2766536, 3458170, 6916340, 7953791, 13832680, 15907582, 30777713, 31815164, 39768955, 61555426, 63630328, 79537910, 123110852, 153888565, 159075820, 246221704, 307777130, 318151640, 615554260, 707887399, 1231108520, 1415774798, 2831549596, 3539436995, 5663099192, 7078873990, 14157747980, 28315495960]

約数ペア:

[(1, 28315495960), (2, 14157747980), (4, 7078873990), (5, 5663099192), (8, 3539436995), (10, 2831549596), (20, 1415774798), (23, 1231108520), (40, 707887399), (46, 615554260), (89, 318151640), (92, 307777130), (115, 246221704), (178, 159075820), (184, 153888565), (230, 123110852), (356, 79537910), (445, 63630328), (460, 61555426), (712, 39768955), (890, 31815164), (920, 30777713), (1780, 15907582), (2047, 13832680), (3560, 7953791), (4094, 6916340), (8188, 3458170), (10235, 2766536), (16376, 1729085), (20470, 1383268), (40940, 691634), (81880, 345817)]